Abstract: The present invention provides a method for manufacturing an electronic device including a base material that has an exposed metal portion on a surface of the base material and an electronic component that is provided on the base material. The method includes a flux treatment step of treating the exposed metal portion with a flux by bringing the exposed metal portion into contact with the flux and an introduction step of introducing a resin composition such that the resin composition comes into contact with a surface of the exposed metal portion treated with the flux. The flux contains a rosin, an activator, and a solvent. The content of the rosin is equal to or greater than 1 part by mass and equal to or smaller than 18 parts by mass with respect to 100 parts by mass of the flux. The percent change in mass of the flux before and after a heating treatment is equal to or lower than 21% by mass. The resin composition contains an epoxy resin and a phenolic resin curing agent.

Abstract: A terminal structure of an armored cable includes an end of an armored cable, a terminal metal fitting, and a support. The end includes a core, and an armoring including armor wires made of copper or copper alloy disposed on an outer circumference of the core. The terminal metal fitting is attached to an end of each armor wire. The support is disposed on a tip side of the core and supports a plurality of the terminal metal fittings. The support includes a base plate and a fixing member. The base plate is provided with a first through hole into which the core is inserted, and second through holes which are provided on an outer circumference of the first through hole and into each of which a corresponding one of the terminal metal fittings is inserted. The fixing member fixes each terminal metal fitting to the base plate.

Abstract: The present invention provides a method for manufacturing an electronic device including a base material that has an exposed metal portion on a surface of the base material and an electronic component that is provided on the base material. The method includes a flux treatment step of treating the exposed metal portion with a flux by bringing the exposed metal portion into contact with the flux and an introduction step of introducing a resin composition such that the resin composition comes into contact with a surface of the exposed metal portion treated with the flux. The flux contains a rosin, an activator, and a solvent. The content of the rosin is equal to or greater than 1 part by mass and equal to or smaller than 18 parts by mass with respect to 100 parts by mass of the flux. The percent change in mass of the flux before and after a heating treatment is equal to or lower than 21% by mass. The resin composition contains an epoxy resin and a phenolic resin curing agent.

Abstract: A terminal structure of an armored cable includes an end of an armored cable, a terminal metal fitting, and a support. The end includes a core, and an armoring including armor wires made of copper or copper alloy disposed on an outer circumference of the core. The terminal metal fitting is attached to an end of each armor wire. The support is disposed on a tip side of the core and supports a plurality of the terminal metal fittings. The support includes a base plate and a fixing member. The base plate is provided with a first through hole into which the core is inserted, and second through holes which are provided on an outer circumference of the first through hole and into each of which a corresponding one of the terminal metal fittings is inserted. The fixing member fixes each terminal metal fitting to the base plate.